184609 2018-04-13 16:29:50 -0700 REGRESSION: Layout Test platform/mac/media/audio-session-category-video-track-change.html is a flaky failure 2026-01-12 09:09:30 -0800 1 1 1 Unclassified WebKit Media Other Unspecified Unspecified NEW InRadar P2 Normal --- 1 ryanhaddad webkit-unassigned eric.carlson graouts jer.noble simon.fraser tsavell webkit-bug-importer oldest_to_newest 1414531 0 ryanhaddad 2018-04-13 16:29:50 -0700 The following layout test is flaky on macOS platform/mac/media/audio-session-category-video-track-change.html Probable cause: Unknown, this test became flaky within the last 7 days. The first failure on the dashboard blames https://trac.webkit.org/changeset/230365/webkit Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=platform%2Fmac%2Fmedia%2Faudio-session-category-video-track-change.html --- /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/platform/mac/media/audio-session-category-video-track-change-expected.txt +++ /Volumes/Data/slave/highsierra-release-tests-wk1/build/layout-test-results/platform/mac/media/audio-session-category-video-track-change-actual.txt @@ -2,16 +2,16 @@ RUN(internals.settings.setShouldManageAudioSessionCategory(true)) RUN(video.src = findMediaFile("video", "../../../media/content/test")) EVENT(canplay) -EXPECTED (internals.audioSessionCategory() == 'None') OK +EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL RUN(video.audioTracks[0].enabled = false) EVENT(change) -EXPECTED (internals.audioSessionCategory() == 'None') OK +EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL RUN(video.muted = false) EVENT(volumechange) -EXPECTED (internals.audioSessionCategory() == 'None') OK +EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL RUN(video.play()) EVENT(playing) -EXPECTED (internals.audioSessionCategory() == 'None') OK +EXPECTED (internals.audioSessionCategory() == 'None'), OBSERVED 'AmbientSound' FAIL RUN(video.audioTracks[0].enabled = true) EVENT(change) EXPECTED (internals.audioSessionCategory() == 'MediaPlayback') OK 1419426 1 webkit-bug-importer 2018-05-01 14:33:37 -0700 <rdar://problem/39878966> 1422428 2 ryanhaddad 2018-05-09 13:00:38 -0700 Marked test as flaky in https://trac.webkit.org/changeset/231462/webkit 1432069 3 ryanhaddad 2018-06-11 14:56:15 -0700 The test is still flaky, with most failures occurring on High Sierra. 1449288 4 tsavell 2018-08-10 09:44:52 -0700 This test has changed from being a constant failure to having flakey Crashes. The test started passing at https://trac.webkit.org/changeset/234463/webkit. Investigating Crashes 1449395 5 jer.noble 2018-08-10 15:21:14 -0700 Crash points to this assert in FrameView.cpp:602: if (!RuntimeEnabledFeatures::sharedFeatures().webAnimationsCSSIntegrationEnabled()) ASSERT(!frame().animation().hasAnimations()); Doesn't seem related to the audio session category change; it may have some strange interaction with modern media controls (as maybe they rely on web animation).